./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c90e10adc572ad343c5e9fa3a02950ecbed0da61 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:35,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:35,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:35,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:35,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:35,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:35,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:35,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:35,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:35,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:35,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:35,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:35,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:35,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:35,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:35,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:35,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:35,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:35,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:35,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:35,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:35,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:35,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:35,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:35,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:35,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:35,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:35,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:35,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:35,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:35,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:35,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:35,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:35,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:35,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:35,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:35,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:35,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:35,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:35,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:35,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:35,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:35,111 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:35,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:35,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:35,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:35,113 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:35,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:35,114 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:35,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:35,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:35,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:35,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:35,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:35,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:35,115 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:35,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:35,115 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:35,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:35,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:35,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:35,117 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:35,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:35,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:35,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:35,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:35,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:35,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:35,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:35,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:35,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c90e10adc572ad343c5e9fa3a02950ecbed0da61 [2019-10-22 09:02:35,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:35,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:35,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:35,180 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:35,181 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:35,182 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i [2019-10-22 09:02:35,250 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/data/59471373e/54e2041b14d54e2e829c69ba22a9f1c5/FLAGc37af3740 [2019-10-22 09:02:35,731 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:35,732 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc.i [2019-10-22 09:02:35,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/data/59471373e/54e2041b14d54e2e829c69ba22a9f1c5/FLAGc37af3740 [2019-10-22 09:02:36,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/data/59471373e/54e2041b14d54e2e829c69ba22a9f1c5 [2019-10-22 09:02:36,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:36,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:36,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:36,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:36,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:36,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa8d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36, skipping insertion in model container [2019-10-22 09:02:36,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,035 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:36,086 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:36,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:36,638 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:36,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:36,785 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:36,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36 WrapperNode [2019-10-22 09:02:36,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:36,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:36,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:36,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:36,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:36,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:36,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:36,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:36,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... [2019-10-22 09:02:36,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:36,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:36,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:36,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:36,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:36,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:36,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 09:02:36,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:36,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:36,961 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 09:02:36,961 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 09:02:36,961 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 09:02:36,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 09:02:36,962 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 09:02:36,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 09:02:36,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 09:02:36,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:36,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:36,966 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 09:02:37,312 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:37,313 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 09:02:37,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:37 BoogieIcfgContainer [2019-10-22 09:02:37,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:37,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:37,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:37,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:37,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:36" (1/3) ... [2019-10-22 09:02:37,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17769e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:37, skipping insertion in model container [2019-10-22 09:02:37,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:36" (2/3) ... [2019-10-22 09:02:37,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17769e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:37, skipping insertion in model container [2019-10-22 09:02:37,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:37" (3/3) ... [2019-10-22 09:02:37,321 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2019-10-22 09:02:37,353 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,354 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,354 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,354 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,354 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,354 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,355 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,355 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,355 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,355 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,356 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,356 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,356 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,356 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,357 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,357 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,357 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,357 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,358 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,358 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,358 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,358 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,358 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,359 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,359 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,359 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,359 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,359 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,360 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,360 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:37,369 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 09:02:37,369 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:37,377 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:37,389 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:37,409 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:37,410 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:37,410 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:37,410 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:37,410 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:37,410 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:37,410 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:37,411 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:37,418 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 09:02:37,586 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 09:02:37,589 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 09:02:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 09:02:37,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:37,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:37,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:37,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:37,623 INFO L82 PathProgramCache]: Analyzing trace with hash -221608999, now seen corresponding path program 1 times [2019-10-22 09:02:37,633 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:37,633 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980200959] [2019-10-22 09:02:37,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:37,634 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:37,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:37,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980200959] [2019-10-22 09:02:37,982 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:37,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:37,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939434353] [2019-10-22 09:02:37,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:37,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:38,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:38,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:38,007 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 09:02:38,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:38,134 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 09:02:38,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:38,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 09:02:38,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:38,167 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 09:02:38,167 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 09:02:38,169 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 09:02:38,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 09:02:38,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 09:02:38,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 09:02:38,350 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 09:02:38,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:38,350 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 09:02:38,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:38,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 09:02:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 09:02:38,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:38,358 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:38,359 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:38,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:38,359 INFO L82 PathProgramCache]: Analyzing trace with hash 107508439, now seen corresponding path program 1 times [2019-10-22 09:02:38,359 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:38,363 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207486633] [2019-10-22 09:02:38,364 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,364 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:38,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:38,554 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207486633] [2019-10-22 09:02:38,554 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:38,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:38,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613515443] [2019-10-22 09:02:38,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:38,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:38,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:38,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:38,558 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 09:02:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:38,648 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 09:02:38,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:38,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 09:02:38,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:38,656 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 09:02:38,656 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 09:02:38,657 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:38,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 09:02:38,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 09:02:38,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 09:02:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 09:02:38,699 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 09:02:38,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:38,700 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 09:02:38,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 09:02:38,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 09:02:38,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:38,703 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:38,704 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:38,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:38,704 INFO L82 PathProgramCache]: Analyzing trace with hash -343595905, now seen corresponding path program 1 times [2019-10-22 09:02:38,705 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:38,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046751161] [2019-10-22 09:02:38,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,705 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:38,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:38,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046751161] [2019-10-22 09:02:38,808 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:38,808 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:38,808 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528192954] [2019-10-22 09:02:38,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:38,809 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:38,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:38,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:38,810 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 09:02:38,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:38,907 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 09:02:38,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:38,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 09:02:38,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:38,912 INFO L225 Difference]: With dead ends: 819 [2019-10-22 09:02:38,912 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 09:02:38,913 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 09:02:38,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 09:02:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 09:02:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 09:02:38,940 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 09:02:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:38,941 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 09:02:38,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 09:02:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:02:38,943 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:38,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:38,944 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:38,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:38,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1836562069, now seen corresponding path program 1 times [2019-10-22 09:02:38,944 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:38,945 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508124799] [2019-10-22 09:02:38,945 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,945 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:38,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:39,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:39,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508124799] [2019-10-22 09:02:39,071 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:39,072 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 09:02:39,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101535761] [2019-10-22 09:02:39,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:02:39,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:39,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:02:39,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:02:39,076 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2019-10-22 09:02:39,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:39,203 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2019-10-22 09:02:39,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:39,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 09:02:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:39,208 INFO L225 Difference]: With dead ends: 1107 [2019-10-22 09:02:39,208 INFO L226 Difference]: Without dead ends: 591 [2019-10-22 09:02:39,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:02:39,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-22 09:02:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-10-22 09:02:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-22 09:02:39,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2019-10-22 09:02:39,233 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2019-10-22 09:02:39,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:39,233 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2019-10-22 09:02:39,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:02:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2019-10-22 09:02:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:02:39,236 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:39,237 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:39,237 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:39,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1258712379, now seen corresponding path program 2 times [2019-10-22 09:02:39,238 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:39,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304138721] [2019-10-22 09:02:39,238 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:39,238 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:39,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:39,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304138721] [2019-10-22 09:02:39,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:39,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:39,422 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538170667] [2019-10-22 09:02:39,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:39,423 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:39,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:39,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:39,454 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 7 states. [2019-10-22 09:02:39,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:39,724 INFO L93 Difference]: Finished difference Result 991 states and 2978 transitions. [2019-10-22 09:02:39,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 09:02:39,725 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 09:02:39,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:39,729 INFO L225 Difference]: With dead ends: 991 [2019-10-22 09:02:39,731 INFO L226 Difference]: Without dead ends: 555 [2019-10-22 09:02:39,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:39,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-10-22 09:02:39,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2019-10-22 09:02:39,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-10-22 09:02:39,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2019-10-22 09:02:39,751 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2019-10-22 09:02:39,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:39,751 INFO L462 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2019-10-22 09:02:39,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:39,753 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2019-10-22 09:02:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 09:02:39,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:39,762 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:39,763 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:39,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1627235635, now seen corresponding path program 3 times [2019-10-22 09:02:39,763 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:39,764 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361598059] [2019-10-22 09:02:39,764 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:39,764 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:39,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:39,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361598059] [2019-10-22 09:02:39,894 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:39,895 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:39,895 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062940775] [2019-10-22 09:02:39,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:39,895 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:39,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:39,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:39,896 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 7 states. [2019-10-22 09:02:39,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:39,996 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2019-10-22 09:02:39,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:39,996 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 09:02:39,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:39,997 INFO L225 Difference]: With dead ends: 427 [2019-10-22 09:02:39,997 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:39,997 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:39,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:39,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:39,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:39,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 09:02:39,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:39,998 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:39,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:39,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:39,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:40,002 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 09:02:40,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:40 BasicIcfg [2019-10-22 09:02:40,004 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:40,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:40,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:40,005 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:40,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:37" (3/4) ... [2019-10-22 09:02:40,010 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:40,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 09:02:40,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 09:02:40,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 09:02:40,023 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 09:02:40,023 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 09:02:40,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9f49db03-5e66-42d3-a5e5-9f332deb3413/bin/uautomizer/witness.graphml [2019-10-22 09:02:40,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:40,070 INFO L168 Benchmark]: Toolchain (without parser) took 4052.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -113.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:40,071 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:40,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:40,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:40,072 INFO L168 Benchmark]: Boogie Preprocessor took 41.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:40,073 INFO L168 Benchmark]: RCFGBuilder took 430.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:40,073 INFO L168 Benchmark]: TraceAbstraction took 2689.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:40,074 INFO L168 Benchmark]: Witness Printer took 63.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:40,077 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 767.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 430.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2689.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 419 SDslu, 812 SDs, 0 SdLazy, 116 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 15578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...